Rough coat ( R ) is dominant over smooth coat ( r ) in guinea
pigs, and black coat ( B ) is dominant over white ( b ). If a
homozygous rough black is mated with a homozygous smooth
white, give the appearance of each of the following: F 1
; F 2
;
offspring of F 1
mated with smooth, white parent; offspring of
F 1
mated with rough, black parent.
Assume right-handedness ( R ) is genetically dominant over
left-handedness ( r ) in humans, and that brown eyes ( B ) are
genetically dominant over blue ( b ). A right-handed, blue-eyed
man marries a right-handed, brown-eyed woman. Their two
children are (1) right handed, blue eyed and (2) left handed,
brown eyed. The man marries again, and this time the woman
is right handed and brown eyed. They have 10 children,
all right handed and brown eyed. What are the probable
genotypes of the man and his two wives?